The SN74CBTD3384PWR is a 10-bit FET bus switch introduced by Texas Instruments. It adopts a 24-pin TSSOP surface mount packaging. The internal structure of this device consists of two independent 5-bit switches, each equipped with a separate output enable terminal (OE), enabling high-speed and low-latency bus isolation and signal switching.
The low on-resistance of this device allows signals to pass through without generating additional propagation delay. What's more, the device is internally equipped with a level conversion diode, which can achieve a level conversion from 5V input to 3.3V output. This makes it highly suitable for mixed-voltage systems.
Features ：
• Core function: 10-bit FET bus switch, 2 independent 5-bit channels
• Conduction resistance (Ron): 5Ω (typical value)
• Switching speed: On-time (Ton) 9.7 nanoseconds, Off-time (Toff) 8.6 nanoseconds
• Propagation Delay (TPD): 250 ps, negligible.
• Operating voltage: 4.5V ~ 5.5V
• Level conversion capability: Supports level conversion from 5V to 3.3V
• Operating temperature: -40°C to +85°C
• Package type: 24-TSSOP
• MSL level: Level-1 (unrestricted)
• Environmental compliance: Compliant with RoHS 3 standards
Application：
• Bus isolation and switching: Performing high-speed signal switching between data buses
• Signal buffering and relaying: Enhancing signal driving capability
• Mixed voltage system interface: Achieves signal matching between 5V and 3.3V logic systems
• Computers and Peripherals: For motherboards, laptops, expansion cards, and other devices
• Communication and industrial equipment: Signal interfaces for routers, switches, PLCs, etc. systems
